Mushroom-bullet.



'F- ,0- HOAGLAHIL MUSHROOM BULLET.

APPLIGATION FILED FEB. 24, 1914.

Patented May 5, 1914.

J lNl/ENTUI? ATTORNEY UNITED STATES PAT FRANK O. HOAGLAND, OE BBIDGEPQRT, CONNECTICUT, ASSIGNOR 'Id UNION METALLIC CARTRIDGE COMPANY, or BRIDGEPORT, connnc'r cur, A conrom'rrou or con- NEGTICUT.

MUSHROOM-norms Connecticut, have invented an Improvement 'in Mushroom-Bullets, (Case E,) of which the following is a specification.

This invention relates to'full covered 1 jacketed bullets of theclass in which 1e body cover and the tip cover-are made separate, and has for its object to provide a bullet of this typewhich while retaining the ordinaryproperties of covered bullets willmushroom, i. e. flatten out upon impact with pm objective. This result I- accomplish by providing the tip' cover with alternate ribs and grooves and then swaging the ribs down upon the tapering portion of the bullet so that the surplus metal of the ribs will lie in the form of folds;

In the accompanying drawing forming a part of this specification, Figure 1 is an elevationof my novel. bullet; Fig; 2 a rear ele- .-vati'on qfthe tip cover as formed Fig. 3 a. "rear elevation-of one form of comb cover detached;'Fig. 4 a rear elevation of a completed tip cover varying from Fig. 3 'in that the foldedmetal is disposed differently, and Fig, 5 is a viewshowing the bullet mushroomed 'hy impact with an objective.

I 10; denotes the .core of my novel :bullet, which is madelof relatively soft metal, 11 the'body coverand 12 the tip cover. The

. gist of theinvention lies in forming the tip cover from a disk of metal and-corrugating j itf in the process of formation as shown in Fig.- 2.' 'Theflcovcr .isformed of greater width at its 'hase than the diameter of the.

bullet and is provided with alternate ribs-13 40 and grooves 14, giving to the tip cover as formed somewhat the appearance of a partly 1 opened umbrella-Q The ribs and grooves are of course widest atthe rear end of the cover and run out well toward theapexthereof.

This partly formed umbrella shaped cover is then placed on the tapering portion of the bulletand swaged down to place, as shown in Figs. 1 and 8, the metal of the completed;

tip cover lying in folds 15 which inthis form extend'in opposite directions from the" I centers of the ribs from which the folds are formed.

Specification of Letters Patent.

leted tip Patented May 5, 1914.

A lication filed February 24, 1914. Serial at. 826,625.

. The form illustrated iii/Fi 4 differs only in that in the swaging process the swaging die has imparted to it a slight rotary movement, theefiect ofwhich is to-close down the ribs 1n the form of folds 16 which extend in one direction only, like the folds of an um;

brella when rolled. I v

I preferably provide some simple means for insuring the retention of the tip cover upon the tapering portion of the bullet.

Just how this is effected, however, is Wholly immaterial so far as the principle of the in;

vention is concerned. In the present instance I have shown the tip cover as retained in place by striking in holding points 17 from the metal of the tip cover and forcing them into the core'as indicated in Fig. 1.

In use, when my novel bullet strikes an objective 1t mushrooms somewhat as indicated in Fig. 5, the folds. of the tip cover opening out like the folds'of an umbrella. .This for the reason that the momentum of'the mass end of the core will mushroom under the cover.

Having-thus described my invention I claim; i

I 1. A bullet of the character described having its tip cover provided with alternate ribs 7 and grooves, the ribs being swaged down upon the tapering portion of .the. bullet in the form of folds which open out like an:

umbrella upon impact with an objective.

:2. A bullet of the character described havinga tip cover formed with alternate ribs and grooves which areiclosed down upon the tapering portion ofthe bullet.

3. A bullet of the characterdescribed havving its tip cover formed with alternate ribs and grooves, the ribs being closed down upon the tapering portion of the bullet in the form of folds extending in opposite directions from'the center of the ribs. I In testimony whereof I afiix my signature in presence of two witnesses. l FRANK o; HoneLANn. Witnesses: I

WILLIAM THonrAs, EDWARDK'; 

